11478370503 has 16 divisors (see below), whose sum is σ = 15681093120. Its totient is φ = 7465009536.

The previous prime is 11478370499. The next prime is 11478370531. The reversal of 11478370503 is 30507387411.

It is not a de Polignac number, because 11478370503 - 2² = 11478370499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11478370583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89298 + ... + 175871.

It is an arithmetic number, because the mean of its divisors is an integer number (980068320).

Almost surely, 2^11478370503 is an apocalyptic number.

11478370503 is a deficient number, since it is larger than the sum of its proper divisors (4202722617).

11478370503 is a wasteful number, since it uses less digits than its factorization.

11478370503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265526.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 11478370503 in words is "eleven billion, four hundred seventy-eight million, three hundred seventy thousand, five hundred three".